Safety razor



March 15, 1932. B. G. JA ssoN ET AL I 1,849,299

SAFETY RAZOR Filed Feb. 26, 1930 2 Sheets-Sheet l &

Mamh 1932- B. c. JANSSON ET AL ,2

SAFETY RAZOR 2 Sheets-Sheet 2 f Filed Feb. 26, 1950 lll lll "iii -12 Jig1' VENTORS. W & M: 641444 W.

7 blade removed therefrom;

Patented Mar. 15, 1932 UNITED STATES BENNETT G. JANSSON. OFKITTERY,-MAI1 IE, AND CHARLES J. EMERSON, 0F WIN PATENT lca fl' CHESTER,MASSACHUSETTS, ASSIGNORS TO EMERSON APPARATUS COMPANY; OF MELROSE,MASSACHUSETTS, A CORPORATION'O-F RHODE'ISLAND SAFETY RAZOR V IApplication-filed February 26, 193D.- Serial N'o. 431,542.

this general character with a view to facili- .t-ating the placing ofthe blades in, and their removal from, the holder, and more especiallyto devising a construction in which the blade will be clamped positivelyin position for shaving while still being quickly: removable whendesired. i

The nature of the invention will be readily understood from thefollowing descriptionwhen read in connection with the acCompanyingdrawings, and the novel features willbeparticularly pointed out in theappended claims.

In the drawings, Figure 1 is a perspectiveview of a razor embodyingfeatures of this invention, showing the holder in its open position andthe Fig. 2 is a rear view ona smaller scale of the construction shownin: Fig. 1, :but showing the handle in section; i y

Fig. 3 is a sectional view. partly in elev'a tion, of theconstructionshown in Figs. 1 and 2;

' Fig. 4: is a front elevation of theholder in its open position;

Fig. 5 1s a perspective view illustrating.

another embodiment of the invention;

Fig. 6 is a vertical sectional view, partly in elevation, showing therazor illustrated in Fig. 5 on a somewhat larger scale;

Fig. 7 is a viewsimilar to Fig. 2 but showing asomewhat differentarrangement'for producing the blade clamping action; and

Fig. 8 is a sectional view on the line 8-8, Fig. 7 J

Referring first to Figs. 1120 4, inclusive, the razor there showncomprises a blade holder which includes a guard Q'and 'a head or. cap 3.These parts are provided with interengaging ears through which a pivotstud 4 extends and hinges the parts 2 and-3 together.

A blade of a construction suitable for use in this razor is shown inFigs. land 3 at 5,

and is designed to be clamped between the members '2 andv 3 of theholder inposition T for shaving; It may beflcentered or POSl-{ tioned intheholder in any convenientman ner, preferably by two pins 6 6projecting 7 from the blade supporting face of the guard I 2 and adaptedto enterholes 7&7 formed in v the blade 5. This construction ensures thelocation of the cutting edge of the blade in e the desired relationshipto the fingers v8 of the guard. Y I

Either of the blade clamping members 2 r and 3 may be mountedto swingrelatively to the other for the purpose of'clamping and' releasing. theblade. In the particular con struction shown in Figs. t0 4,inclusive,the guard 2 is arranged to swing and the cap: 3 is made rigidwith a part of the handle.

That is, the handle includes a split or biv furcated' shank portion .10which terminates at itsjlower end in'a rod 11 and is securedat-itsupperend to, or is made integral with,

the cap 3. A hand pieceor'grip 12 is mount ed on the -section 11' ofthesh'ank piece. the two being sec'uredtogether in this particular casea pin 14.

In orderto swing the guard 2into and of its blade clamping relationshipto the cap 3,it is provided with an arm 15, preferably made integralwith the guard and projecting V rigidly therefrom. When the holder isclosed this arm extends along the shank portion: of the handle betweenthe bifurcated members 10, and some means preferably of a screw,threaded character. is associated .with the handle to'act on this arm'ina direction to 1 cause it to move'the guard ,2 into its blade clampingrelationship to the cap 3.

As shown in'Fig. 3, the lower end of the arm 15 has abevelled or camshaped face 16 toengage the endof a relatively 'thin.

. screw threadedplunger 17 which is slidably mounted in the shank member11 of the handle this part. 11 being slotted to receive the plunger 17.A knurled sleeve 18 looselyencircles the shank 11 and is internallythreaded to engagethe threaded edges of the bar shapedplunger 17, thesleevegbeing held against any substantial movement longitudinally of theaxis of the handle by its engagement with the grip 12'and with ashoulder 19 on the shank. The arm 15 can swing freely into or out of thespace between the split sections 10 of the shank, and the plunger 17 isguided in the slotted portion of the shank for movement axially of thehandle.

It will be clear from an inspection of Fig.

3'. A reverse rotation of the sleeve 18 will 'move the plunger 17downwardly, thus releasing-the arm 15 and permlttingit to be swung in aclockwise direction into an open osition, as shown in Flg. 1, where theblade will be releasedand can readily be removed from the holder. r e

In inserting a blade in the holder it is placed against the surface ofthe guard with the pins 6-6 entering the holes 77, and the arm 15 thenis swung downwardly betweenv the shank members 10-10, after which thesleeve 3is revolved to lock the arm as above described. During thisswing ng movement 3 the rearward edge of the blade will describe an arcabout the aXis of the pivot i, and con.- sequently, the cap 3 is cutaway on its lower surface, as indicated at 21, Fig. 3, to provide asuitable clearance for this edge of the blade.

It should be noted that the parts 2 and 3 clamp the blade closelyadjacent to its cutting' edge and that the clamping action is producedpositively. Consequently, any possibilitv of the blade vibrating intheholder is effectually prevented, At the same time the blade can bequickly placed in the holder and clamped in shaving position or releasedand removed from the holder.

Figs. 7 and 8 show a modification of the construction shown in Figs. 1to 4, inclusive,

the hold-er parts 2 and 3 and the shank 10 and arm 15 being like thoseabove described. The section 11 of the shank, however, is externallythreaded along the region adjacent to its junction with the fork pieces10-40, and the grip 12 is internally threaded to engage the threads onthe section 11. This embodlment of the invention also includes a plunger22 which is square in cross-sectional form and slides in a square holein the shank piece 11. Its lower end preferably is enlarged somewhat, asshown at 23, and abuts against the bottom of the hole in the grip 12".The upper end of the plunger has an inclined face like the face 20, Fig.3, to engage the cam face 16 on the arm 15. Consequently,

when the grip 12 is revolved in one direction it will force the plunger22 upwardly, thus acting on the arm 15 in exactly the same way that theplunger 17 operates on it in the construction shown in Fig. 3. That is,it moves the arm 15 in such a direction as 'to'cause the clamping of theblade in the holder, and it locks the arm in its blade clampingposition, both the movement of the plunger and the locking of it beingeffected positively.

A reverse rotation of the grip 12 releases the arm 15 and permits it tobe swung into position to open the holder.

Still another embodiment of the invention is illustrated in Figs. 5 and6. In this construction the guard 2 is made'integral with, p

or is rigidly secured to, the bifurcated section of the shank piece,andthe lower end 11 of the shank is externally threaded, the grip 12 beingscrew threaded on to it. The cap 3 is mounted to swing relatively to theguard 2 and is provided with an arm 25 extending rigidly therefrom. Asecond arm or link 2613 pivoted to the'free end of the arm 25, and itslower rounded end is adapted to be engaged by the upper end of the grip12 as shown in Fig. 6. Consequently,.whe'n the grip 12 is threadedupwardly on the shank 11 it forces the arm or link 26 upwardly, thusoperating through the arm 25 to swing the cap 3 down where it will clampthe blade 5 securely against the upper surface of the guard 2". I Areverse rotation of the grip 12 moves it away'from the guard, thusreleasing the arm 26 and permitting the holder to be swung open. Itshould be observed that in this arrangement the arms 25 and 26 have atoggle action in transmitting the thrust of the grip 12. which isutilized in clamping the blade.

In both of the modifications above described the blade is clampedpositively along the region closely adjacent to'its cutting edge, as inthe construction shown in Figs. 1 to 4:, and in all of theseconstructions the blades may be inserted and locked in the holder orremoved therefrom quickly and with relativelv little effort.

While we have herein shown and'described preferred embodiments of ourinvention, it will be understood that the invention may be embodied inother forms. without departing from the spirit or scope thereof.

one of said membershaving an arm, said handle including a screw threadedmember, and means including a second screw threaded part having athreaded engagement withsaid screw threaded member for positively movingsaidarm to relatively; move said members into their blade clampingrelationship.

2. A safety razor comprisinga holder including two members hingedtogether for clamping a razor blade between them in position forshaving, a handle for said holder, one of said members having an arm,and means for operating said arm to clamp said members on said blade,said means including a plunger carried by an intermediate portion ofsaid handle and slidable longitudinally thereof and a screw threadedpart rotatable about the axis of said handle for acting on said plungerto slide it. i

3. A safety razor comprising a holder, a handle for said holder, saidholder including a cap rigid with said handle and a guard;

pivoted to said cap, an arm rigid with said guard and projectingtherefrom for swinging said guard into or out of its blade clampingrelationship to said cap, said arm being arranged to extend along thehandle when in its clamping position, a device carried by said handlefor locking said arm in position to hold the blade clamped, and screwthreaded means for positively moving said device into lockingrelationship to said arm.

4. A safety razor comprising a holderincluding a cap and a guard hingedtogether, an arm rigid with said guard and projecting therefrom forswinging the guard into and out of its blade clamping relationship tosaid cap, a handle for said holder comprising a shank rigid with saidcap and a grip portion threaded on said shank, and a plunger slidable insaid handle arranged to be operated by the turning of said grip on saidshank, said plunger serving to engage said arm to force it into positionto cause said guard and cap to clamp a blade between them.

r 5. A safety razor comprising a holder including a cap and a guardhinged together, an arm rigid with said guard and projecting therefromfor swinging the guard into and out of its blade clamping relationshipto said cap, a handle for said holder comprising a shank rigid with saidcap and a grip portion mounted on said shank, an internally threadedsleeve rotatable around the axis of said handle, and a plunger slidablein said handle and adapted to be moved backward and forward by therotation of said sleeve, said plunger being arranged to engage said armand operative to move said arm to force said guard into blade clampingrelationship to said cap. 7

6. A safety razor comprising a holder including a cap and a guard hingedtogether,

an arm rigid with said guard and projecting therefrom for swinging theguard into and out of its blade clamping relationship to said cap, ahandle for said holder comprising a shank rigid with said cap and a gripportion threaded on said shank, and

means arranged to be operated by the rota:

tion-of said grip on said shank for acting on I said arm to relativelymove said cap and; guard into their blade clamping relation- Ship. I p7. safety razor comprising a blade holder including a guard and a caprelatively movable to clamp a blade between them, a handle rigid withsaid cap and including-a grip portion and a split shank connecting saidgrip portion with said cap,. a

said guard being hinged to said cap to swing from its blade clampingrelationship to the capinto an open position, an arm extending from saidguard to swing between the split portions of said shank, and meanscarried by said handle for acting on said arm to force said guard intoblade clamping relationship to said cap, said means'including a camandianoperating element carried by said-handle and mounted-for rotarymovement aroundthe axis of said handle.

8. A safety razor comprising. a blade.

holder including guard and cap members hinged together forengaging arazor blade. adjacent to its edge and clamping said blade inposition forshaving; a. handle for said holder extending at approximately right Iangles thereto;- said handle including'aI slotted portion; and meansvfor relatively moving said members to clampa bladebetween them; .said'means including a bar shaped plunger slidably mounted inthe slot in saidhandle and threadedat its opposite edges, and a sleeve in threadedengagement with-said plunger and rotatably mounted on" an intermediateportion of said handle for.

operating said plunger.

9. A safety razor comprising a blade holder including guard and capmembers hinged together for engaging arazor blade adjacent to its edgeand clamping said blade i V in." position for shaving; a handle for saidholder extending at approximately right angles thereto; said handleincluding a grip portion and a split shank connecting said .7

grip portion with said holder; and means for relatively moving saidguard and cap to I clamp a blade between them, said means including aplunger having an externally threaded part slidable in the split portionof said shank, and a sleeve rotatable about:

said shankand internally threaded to e ngage the threadedipart of saidplunger. 7 I

10. A safety razor comprising a blade holder including guard and capmembers hinged together for engaging a razor blade adjacent to its edgeand clamping said blade inposition for shaving; a handle for said holderextending at approximately right angles thereto; saidhandle having asplit shank portion rigidly connected with one. of said members and agrip portion mounted on said. shank; an arm extending rigidly from theother of said members for relativ'e'ly swinging the latter member intoand out of blade clamping relationship to its companion'member; said armbeing arrangedto swing into the split portion of said. shank; a plungerfor operating said arm; said plunger being slidably mounted in the splitportion of said handle and being o, split to provide two arms rigidlyconnected I "loone of said members; an arm projecting rigidly fromtheother of said members and arranged to swing in the space between saidarms toopen or close the holder and having a part to extend along saidshank when'the holder is closed, and means slidable longitudinally ofsaid handle for engaging said arm and holding it in position to maintainsaid members clamped on a blade. 12. A safety razor comprising a bladeholder including guard and cap members hinged together for engaging arazor blade adjacent to its edge and clamping said blade in position forshaving; a handle for said i holderextending at approximately rightan'glestheretor one of said members having an arm'projecting rigidlytherefrom and said arm having a cam face thereon; a plunger for engagingsaid cam face, said plunger be ing slidable in said handle; and meanscars riedby said handle for operating said plunger to cause it to actthrough said arm to clamp said members on said blade. 13. A safety razorcomprising a blade holder including guard and cap members hinged"together for engaging a razor blade adjacent to its edge and clampingsaid blade in position for shaving; a handle for said holder extendingat approximately right angles thereto; one of members having an arm pro-"jecting rigidly therefrom and saidarmhaving a cam face thereon; aplunger for engaging said cam face; said plunger being slidable in saidhandle; and a screw threaded sleeve having threaded engagement with saidplunger and rotatably mounted on said handle for operating said plungerto cause it to act through said arm to clamp said members on said blade.i r. ,7 1.4. In a safety razor, the combination of 60 a blade holderincluding a guard having a blade supporting face on the upper sidethereof, a-cap cooperating with said guard to clamp the blade on saidface in position for shavin said cap and guard cooperating to enclosethe "5 greater part of said blade leaving the edgehaving interengaginghinge lugs extending from the rearward portions thereof, a pivot pinextending through. said lugs and connecting said cap and guard togetherfor pivotal movement intoopenand closed relation.-

ship, a handle secured rigidly to said cap and located in a planeextending at approximately 7 right angles to the cap, said handleincluding a shank portion and agrip portion, an arm fastened to saidguard formovement there-- with as the guard swings toward and from saidshank portion of the handle, and means carried by said handle for actingon said arm in an endwise direction'relatively to the arm to force saidguard into'its blade clamping relationship to said cap.

In testimony whereof we have hereunto signed our names to thisspecification.

BENNETT G. JANSSON. CHARLES J. EMERSON.

